89 honda civic

Hello there you asked for a little more information on the smoke. Well it has not been overheating or losing coolant it was just running poorly and loud. The smoke only started after he changed the spark plug to a new one. He did show me oil on the spark plug the ols and new one as well. he said that the smoke was from all the oil that been backed up into the cylinder? he said it had all been caused from autolite spark plugs he said they probably lasted me a month so can a car run on bad spark plugs and is there special ones for foreighn cars I just feel that since my car was still driving that I didnt need a new motor but he said that once he put new spark plugs if it keeps smoking that means i need a new motor

Well some spark plugs are better than others for certain cars and Autolite plugs are not recommended for hondas. As far as oil showing on the plugs the more likely indication is that the valve guides have gone bad on the engine. A good sign of bad valve guides is if the car smokes more when you first start it after it has been sitting overnight. The Proper way to test for a sound engine is to do a compression test on the cylinders, that way you have a percise check on the overall health of the engine(for a mechanic to say otherwise is not a good sigh). If the car does have bad valve guides it is not threatening to the healh of the engine. You biggest problem from faulty guides is that it will cause you spark plugs to foul(oil soaked) and not fire as well as it should, In my opinion and without having the results of a compression test I think that valve guides is you proplem and not a "bad engine". The reason for your car smoking more after the new plugs is that they are able to burn the oil and you older autolites could not. My biggest and most important recommendation is that you never go back to that mechanic again.

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Related Questions:

look for bubbles in the radiator while the car is warming up (be careful of hot coolant spitting out of the cap) if there or little bubbles it could be a good indication of a blown head gasket or cracked head

DO YOU SEE YOUR HONDA CIVIC SMOKE AT THE TAIL PIPE, COULD IT BE THAT IT SMOKES WHITE.
HAVE YOU CHECKED YOUR COOLANT LEVEL,
IF YOU NEED COOLANT OR SMOKES WHITE, MEANS THAT COOLANT GET INTO THE CYLINDER HEAD CHAMBER. ALL IT NEEDS IS A SMALL AMOUNT TO MAKE IT SKIP.

White smoke is burnt coolant. Take the car in and have a pressure test done on the rad. It's probably going to lose pressure slowly so get a compression test done on the engine. This will most likely show a leaky head gasket. That is the most common cause of white smoke out the tail pipe and could also cause your other symptoms. Hope this helps.

with the engine cold take off the radiator cap start the engine if puffs of smoke start to came out you have a blown head gasket or cracked head also try taking out the thermostat if its stuck closed it will cause it to overheat

Why did you replace your radiator?I ask this because I assume the car was overheating or overheated after the radiator swap. If this is the case then how long was it driven while over heating?Driving in an overheated condition even for a few minutes is enough to warp the aluminum head, (just ask my mother, not once but twice).First thing I would check is the oil. If the oil appears milky it means that coolant\water if flowing between the oil ports and coolant ports in the head. Also was the color of the smoke white and did it have a sweet odor. If yes to either then the coolant\water is flowing from the coolant ports into the combustion chamber. You would aslo notice a loss of coolant\water with no apparent source.It sounds like you have a blow head gasket and you can be sure that it also warped the head. A compression test would confirm this.I really wish I could give you a better explanation for this.

No it has not been overheating or losing coolant at all it just has been running rough and poorly (loud) it was not smoking till he took out the old spark plug and put in the new one he said it was smoking out all that had been backed up into the cylinder due to non working spark plugs (there was oil on the spark plug)